October 3, 200520 yr I have a 04 280 pro and when the engine is cold there is a whining noise coming from the engine. Could this be a problem with the piston rings as it goes away when the engine is warm.
October 7, 200520 yr Author I would assume its because when the casing is hot the expansion causes the bit that was rubbing to move away from the flywheel. (the "bit" is a technical term ) Glad its sorted i thought it was aomething serious.
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